noun
Public Security Intelligence Agency
Japan's national intelligence agency responsible for domestic security and counter-espionage, operating under the Ministry of Justice.
公安調査庁は国内の治安情報を収集する機関です。
The Public Security Intelligence Agency is an organization that collects domestic security intelligence.
Compound of 公安 (public safety) + 調査 (investigation) + 庁 (agency). The name reflects its role as an investigative body for public security.